Question

Calculati latuara unui triunghi echilateral ABC , stiind ca raza cercului sau inscris este : a) r=4 b)r=8√3​

Answer 1

a)r=4 cm

l=2•r$\sqrt{3}$=2•4$\sqrt{3}$=8$\sqrt{3}$cm

b)r=8√3 cm

l=2•r$\sqrt{3}$=2•(8$\sqrt{3}$)•$\sqrt{3}$=2•8$\sqrt{3} \sqrt{3}$=2•8•3=2•24=48 cm